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dc.contributor.authorChen, Chiu-Hsiangen_US
dc.contributor.authorCheng, Yen-Juen_US
dc.contributor.authorChang, Chih-Yuen_US
dc.contributor.authorHsu, Chain-Shuen_US
dc.date.accessioned2014-12-08T15:20:35Z-
dc.date.available2014-12-08T15:20:35Z-
dc.date.issued2011-11-08en_US
dc.identifier.issn0024-9297en_US
dc.identifier.urihttp://dx.doi.org/10.1021/ma201824gen_US
dc.identifier.urihttp://hdl.handle.net/11536/14659-
dc.description.abstractWe have developed a ladder-type multifused thienyl-phenylene-thienylene-phenylene-thienyl (TPTPT) unit where each thiophene ring is covalently fastened with the adjacent benzene rings by a carbon bridge, forming four cyclopentadiene rings embedded in a nonacyclic structure. This rigid and coplanar TPTPT building block was copolymerized with electron-deficient acceptors, dibromobenzothiadiazole (BT) or dibromodithienyldiketopyrrolopyrrole (DPP), via Stille polymerization. By varying the feed ratio of the monomers, a new series of random copolymers PTPTPTBT11, PTPTPTBT12, PTPTPTDPP11, PTPTPTDPP12, and PTPTPTDPP13 with tunable optical and electronic properties were prepared. The PTPTPTDPP12/PC(71)BM (1:4, w/w) based device exhibited the highest short circuit current (J(sc)) of 10.78 mA/cm(2) with a good power conversion efficiency (PCE) of 4.3% due to the much boarder absorption ability and the highest hole mobility of PTPTPTDPP12. The devices based on PTPTPTDPP13, PTPTPTDPP11, PTPTPTBT12, and PTPTPTBT11 polymers also displayed promising efficiencies of 4.1%, 3.6%, 3.1%, and 2.8%, respectively. Most importantly, PTPTPTDPP12 has been demonstrated as a superior low-band-gap material for polymer solar cell with inverted architecture, achieving a high PCE of 5.1%.en_US
dc.language.isoen_USen_US
dc.titleDonor-Acceptor Random Copolymers Based on a Ladder-Type Nonacyclic Unit: Synthesis, Characterization, and Photovoltaic Applicationsen_US
dc.typeArticleen_US
dc.identifier.doi10.1021/ma201824gen_US
dc.identifier.journalMACROMOLECULESen_US
dc.citation.volume44en_US
dc.citation.issue21en_US
dc.citation.spage8415en_US
dc.citation.epage8424en_US
dc.contributor.department應用化學系zh_TW
dc.contributor.departmentDepartment of Applied Chemistryen_US
dc.identifier.wosnumberWOS:000296308300008-
dc.citation.woscount36-
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